165s are probably your best bet, but larger heads with a cam with tight lobe separation can make good low end torque and high RPM power. A drastic comparison is my dart block 408 my race truck. Has afr renegade 225s and only 9.25 to 1 compression. It made 490ish foot pounds at 2500rpm even though peak horsepower of 560hp is at 6700rpm. Peak torque of 585 is at 4500. If it was 11 to 1 I assume both hp and tq may be over 600. The 302 in my bronco has 10.5 to 1 and very opened up iron heads with big valves. It has an Isky mega 280 cam. It's lobe sep is 108. It lopes a lot at 1000 rpm but by 1200 it's smooth. Maybe it's the compression but it makes A LOT more torque at every rpm that the stock 302 yet pulls hard to 7000. Most cams are 112 lobe sep maybe 110 but the 108 stuff makes a ton of lowish and midrange torque.
